Christoph Leisser

ORCID: 0000-0003-4678-3429
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About
Contact & Profiles
Research Areas
  • Retinal and Macular Surgery
  • Intraocular Surgery and Lenses
  • Retinal Diseases and Treatments
  • Glaucoma and retinal disorders
  • Retinal and Optic Conditions
  • Vascular Malformations Diagnosis and Treatment
  • Retinal Imaging and Analysis
  • Corneal surgery and disorders
  • Optical Coherence Tomography Applications
  • Cerebrovascular and Carotid Artery Diseases
  • Ophthalmology and Visual Impairment Studies
  • Cerebral Venous Sinus Thrombosis
  • Acute Ischemic Stroke Management
  • Retinal Development and Disorders
  • Photoacoustic and Ultrasonic Imaging
  • Traumatic Ocular and Foreign Body Injuries
  • Vasculitis and related conditions
  • Coffee research and impacts
  • Ocular and Laser Science Research
  • Neurological Disorders and Treatments
  • Moyamoya disease diagnosis and treatment
  • Advanced Scientific Research Methods
  • Ocular Diseases and Behçet’s Syndrome
  • Folate and B Vitamins Research
  • Visual perception and processing mechanisms

Hanusch Hospital
2015-2025

Vienna Institute for Research in Ocular Surgery
2016-2025

Moorfields Eye Hospital NHS Foundation Trust
2016

Kliniken der Stadt Köln
2012-2014

Fachhochschule Wiener Neustadt
2010-2011

Hospital of the Brothers of St. John of God
2004-2005

University of Vienna
2003

PURPOSE: To evaluate the influencing factors on remaining astigmatism after implanting a toric intraocular lens (IOL) during cataract surgery. METHODS: This retrospective study included parameters that were considered to have an influence IOL power calculation. Therefore, data from literature and authors' own used. axial eye length, anterior chamber depth, central corneal thickness, radii (anterior posterior), diurnal changes of cornea, inter-device differences, rotational misalignment IOL,...

10.3928/1081597x-20200729-03 article EN Journal of Refractive Surgery 2020-10-01

To assess the sensitivity and specificity for detecting macular disease with a new optical biometry device swept-source coherence tomography (SS-OCT) used before cataract surgery.Hanusch Hospital, Vienna, Austria.Consecutive case series.This study included patients or without disease. All were scanned using (IOLMaster 700), which allows 1.0 mm central retinal scan SS-OCT technology. Also, all eyes assessed dedicated OCT (RTVue) on same day. Two experienced examiners 1 ophthalmology resident...

10.1016/j.jcrs.2016.02.029 article EN cc-by-nc-nd Journal of Cataract & Refractive Surgery 2016-04-01

To evaluate the test-retest reproducibility of a novel microperimeter with fundus image tracking (MP3, Nidek Co, Japan) in healthy subjects and patients macular disease.Ten 20 suffering from range diseases were included. After training measurements, two additional microperimetry measurements scheduled. Test-retest was assessed for mean retinal sensitivity, pointwise deep scotoma size using coefficient repeatability Bland-Altman diagrams. In addition, subgroup compared conventional...

10.1167/tvst.7.1.17 article EN cc-by-nc-nd Translational Vision Science & Technology 2018-02-07

<title>Abstract</title> To assess the impact of an adaptive fluidics system (AFS) compared to a gravity (GFS) on lens-iris diaphragm retropulsion syndrome during cataract surgery in myopic eyes using continuous intraoperative swept source optical coherence tomography (SS-OCT) measurements. In this explorative, randomized, patient-masked, study with intra-individual comparison, patients had first operated eye allocated AFS or GFS groups same phacoemulsification platform (Stellaris/Stellaris...

10.21203/rs.3.rs-5759409/v1 preprint EN cc-by Research Square (Research Square) 2025-02-21

BACKGROUND AND OBJECTIVE: The aim of this study was to examine the quality intraoperative visualization posterior hyaloid, epiretinal membrane (ERM), inner limiting (ILM), and hyporeflective subfoveal zone with a commercially available, microscope-integrated spectral-domain OCT setup (mi-SD-OCT) (Rescan 700; Carl Zeiss Meditec AG, Germany). PATIENTS METHODS: Twenty patients prospectively scheduled for pars plana vitrectomy peeling due an idiopathic ERM were included. Standard 23-gauge,...

10.3928/23258160-20160324-04 article EN Ophthalmic surgery, lasers & imaging retina 2016-04-01

Purpose To evaluate the effect of eplerenone on patients with long-term recurring central serous chorioretinopathy (CSC). Methods In this retrospective case series, 11 chronic CSC were included. The main focus was to include who had undergone photodynamic therapy (4 patients), anti–vascular endothelial growth factor treatment (3 or several episodes in past patients) (mean age 60 years; SD 9.7, range 47-76). Results Four (36.4%) full resorption neurosensory detachment under improvement...

10.5301/ejo.5000727 article EN European Journal of Ophthalmology 2015-12-17

Abstract Purpose Epiretinal membranes (ERM) are macular disorders leading to loss of vision and metamorphopsia. Vitrectomy with membrane peeling displays the gold standard care. Aim this study was assess risk factors for postoperative intraretinal cystoid changes in a population randomized balanced salt solution air‐tamponade at end surgery. Methods A prospective study, including 69 eyes idiopathic ERM. Standard 23‐gauge three‐port pars plana vitrectomy peeling, using intraoperative optical...

10.1111/aos.13635 article EN Acta Ophthalmologica 2018-02-20

Epiretinal membranes (ERMs) are a disorder leading to progressive vision loss and metamorphopsia. The gold standard in therapy is vitrectomy with membrane peeling. aim of this study was assess whether the use intraoperative optical coherence tomography (iOCT), which allows tomographic visualization during peeling, enables peeling without staining.This prospective included 30 eyes patients idiopathic ERMs scheduled for surgery. Pars plana iOCT performed all cases, whereas staining only if...

10.1159/000493279 article EN Ophthalmologica 2018-11-09

&lt;b&gt;&lt;i&gt;Introduction:&lt;/i&gt;&lt;/b&gt; Central and paracentral retinal function is often compromised in various diseases. In these conditions, microperimetry an important tool for assessing sensitivity values. As diseases are prevalent among the elderly, cataract coexists. This study investigates effect of surgery on patients with without disease. &lt;b&gt;&lt;i&gt;Material Methods:&lt;/i&gt;&lt;/b&gt; A total 30 already scheduled were enrolled visual acuity evaluation was...

10.1159/000507450 article EN Ophthalmic Research 2020-03-25

Classical or temporal internal limiting membrane (ILM) flap transposition with air gas tamponade are current trends the potential to improve surgical results, especially in cases large macular holes.A prospective case series included patients idiopathic holes persistent after 23-G pars plana vitrectomy (PPV) and ILM peeling tamponade. In all patients, PPV postoperative face-down position was performed.In 7 of 9 eyes, combined pedicle could be successfully performed were closed eyes surgery....

10.5301/ejo.5001037 article EN European Journal of Ophthalmology 2017-09-18

Internal limiting membrane (ILM) flap transposition in surgical repair of macular holes represents a new technique offering good anatomical success rates with large holes. The aim the study was to examine microperimetric outcomes 1 year after ILM for holes.Patients idi-opathic scheduled 23-G pars plana vitrectomy peeling, transposition, and SF6 tamponade were examined prospective case series. Distance corrected visual acuity (DCVA), optical coherence tomography, microperimetry measured...

10.1159/000489458 article EN Ophthalmic Research 2018-06-22

The risk of developing stroke after retinal artery occlusion was reported to be increased. aim our study assess the rate strokes/transitory ischemic attacks in a European population and identify groups.All patients, diagnosed with branch or central at outpatient department since 2014, were asked participate this prospective case-control study. At initial examination, medical history documented 1 year occlusion, patients called by telephone interview for assessment attack follow-up period.In...

10.1177/1120672119830925 article EN European Journal of Ophthalmology 2019-02-19

&lt;b&gt;&lt;i&gt;Purpose:&lt;/i&gt;&lt;/b&gt; The aim of the study was to examine whether air tamponade has a significant effect on postoperative tilt intraocular lens (IOL) in combined phacoemulsification with implantation an IOL and vitrectomy compared balanced salt solution. &lt;b&gt;&lt;i&gt;Procedures:&lt;/i&gt;&lt;/b&gt; This randomized, controlled, monocentre included patients scheduled for pars plana vitrectomy. Patients were randomized solution or tamponade. Postoperative...

10.1159/000499116 article EN Ophthalmologica 2019-01-01

&lt;b&gt;&lt;i&gt;Purpose:&lt;/i&gt;&lt;/b&gt; Epiretinal membrane is a macular disorder leading to metamorphopsia and decreased visual acuity. The aim of the present study was assess possible effects air tamponade, balanced salt solution (BSS), combined phacoemulsification on functional anatomical outcomes. &lt;b&gt;&lt;i&gt;Procedures:&lt;/i&gt;&lt;/b&gt; This prospective exploratory analysis included 72 eyes with idiopathic epiretinal membranes, scheduled undergo 23-G pars plana...

10.1159/000498898 article EN Ophthalmologica 2019-07-26

We built an optical coherence tomography (OCT) system with a rapid scanning delay (RSOD) line, which allows probing full axial eye length. The produces Three-dimensional (3D) data sets that are used to generate 3D tomograms of the model eye. raw tomographic were processed by algorithm, is based on Snell's law correct interface positions. Zernike polynomials representation interfaces quantitative wave aberration measurements. images our results presented illustrate capabilities and algorithm...

10.1117/12.500074 article EN Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE 2003-10-01

Abstract Retinal artery occlusion (RAO) is a common ocular vascular occlusive disorder that may lead to partial or complete retinal ischemia with sudden visual deterio ration and field defects. Although RAO has been investigated since 1859, the main mechanism still not fully understood. While hypoperfusion of ophthalmic (OA) due severe stenosis internal carotid might RAO, emboli are assumed be reason. Intra-arterial thrombolysis sufficient treatment for current research mainly focused on...

10.1515/bmt-2014-0002 article EN Biomedical Engineering / Biomedizinische Technik 2014-01-01

&lt;b&gt;&lt;i&gt;Purpose:&lt;/i&gt;&lt;/b&gt; Primary open-angle glaucoma (POAG) is a chronic progressive optic neuropathy, leading to degeneration of retinal ganglion cells and characteristic morphological changes at the disc. In advanced stages disease, functional tests, such as standard automated perimetry (SAP), are main diagnostic tools detect progression. Compared SAP, microperimetry offers fundus imaging with motion tracking ensure precise stimulation certain locations retina. Aim...

10.1159/000501693 article EN Ophthalmic Research 2019-08-20

&lt;b&gt;&lt;i&gt;Introduction:&lt;/i&gt;&lt;/b&gt; Vitrectomy with peeling of epiretinal membrane (ERM) and internal limiting offers the chance for improvement metamorphopsia visual acuity. Microscope integrated intraoperative optical coherence tomography (iOCT) enables real-time imaging retinal alterations during peeling, such as transient thickening owing to tractional forces peeling. The aim our study was measure amounts due documented iOCT, analyze possible effects on postoperative...

10.1159/000507633 article EN Ophthalmic Research 2020-04-01

Purpose To examine the integrity of ellipsoid zone after perfluoro-n-octane use for reattachment central retina in macula-off retinal detachment cases. Methods Intraoperative video documentation with microscope-integrated intraoperative spectral-domain optical coherence tomography (OCT) 10 consecutive patients detachment, scheduled primary vitrectomy repair, was retrospectively examined defects due to use. Results Successful visualization possible all cases, reattached but residual islands...

10.5301/ejo.5000791 article EN European Journal of Ophthalmology 2016-04-16

Preoperative and postoperative optical coherence tomography (OCT) of macular pathologies can be regarded as the gold standard diagnostic technique, providing detailed information on microstructures macula for planning surgical procedure comparing improvements after surgery in follow-up period. Intraoperative use OCT is a novel application to support surgeons during surgery. The aim this study was examine precision microscope-integrated intraoperative spectral-domain (i-OCT) device compare...

10.5301/ejo.5001058 article EN European Journal of Ophthalmology 2017-10-18
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